Worldwide Volcano News and Updates

Sezione di Catania - Osservatorio Etneo reported that the twenty-fifth paroxysmal eruptive episode since January 2011 took place at New SE Crater (New SEC) of Etna during the morning of 24 April following about 11 days of quiescence. During 21-22 April a series of small ash emissions observed by web cameras drifted downslope to the E. On 22 April prolonged emissions of white vapor rose from an area in the upper portion of the fissure that cuts the SE flank of the cone. Read all

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KVERT reported that moderate seismic activity from Karymsky continued to be detected during 20-27 April, and indicated that possible ash plumes rose to an altitude of 2.5 km (8,200 ft) a.s.l. during 20 and 24-25 April. Satellite imagery showed a daily thermal anomaly on the volcano. Read all

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During 25 April-1 May HVO reported that the circulating lava lake periodically rose and fell in the deep pit within Kilauea's Halema'uma'u Crater. Frequent measurements indicated that the gas plume from the vent continued to deposit variable amounts of ash, and occasionally fresh spatter, nearby. Incandescence was visible from both a lava pond in a small pit on the E edge and a small spatter cone on the SE edge of the Pu'u 'O'o crater floor, and on the upper part of the lava-tube system on the E flank. Read all

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According to INGEOMINAS, the Observatorio Vulcanológico and Sismológico de Manizales reported that during 25-26 and 28-30 April video data and observers in the city of Manizales (25 km NW) indicated that gas-and-steam plumes rose .5-2 km above Nevado del Ruiz's crater. Cloud cover prevented observations on 27 April. Seismic signals indicated that an ash plume was emitted at 1248 on 30 April however cloud cover prevented observations. Read all

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INSIVUMEH reported that on 25 April a lahar traveled down Santa María's Rio Nima II drainage, carrying 1.5-m-wide blocks and tree branches. During 30 April-1 May white plumes rose 300-600 m above the lava dome. Lava flows continued to produce avalanches that descended the flanks. Read all

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KVERT reported that explosive activity at Shiveluch continued during 20-27 April. Ground-based observers and satellite imagery indicated that a viscous lava flow continued to effuse in the crater formed during a 2010 eruption and was accompanied by fumarolic activity. Seismic data and visual observations showed that ash plumes rose to an altitude greater than 10 km (32,800 ft) a.s.l. on 24 April and were slight on the other days. Read all

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MVO reported that during 20-27 April activity at the Soufrière Hills lava dome was at a low level. Observations on 24 April revealed fresh rockfall and pyroclastic flow deposits SW, at the head of Gingoe's Ghaut. The Hazard Level remained at 2. Read all

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IG reported that during 25-30 April visual observations of Tungurahua were occasionally limited due to cloud cover. On 27 April a steam-and-ash plume rose 200 m above the crater and drifted WNW. On 30 April tremor was detected then followed by an ash plume that rose 4 km above the crater and drifted WNW. Read all

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11 days following the last eruption, the 25th paroxysm of Etna's New SE crater is happening at the time of writing in the evening 23 April. It started around 16:00 hrs local time with week Strombolian explosions accompanied by a steeply increasing tremor.

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Weak ash emissions from deep strombolian activity within the New SE crater has been observed since last evening (20 April). If the eruption patterns remains more or less the same, a new paroxysm is probably under way within the next days.

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